ICP Control Board Kit for RHH072H0AA0AAAA — OEM Defrost Board | Ships Today
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Overview
This OEM control board kit (part 1183618) is the electronic brain of your ICP RHH072H0AA0AAAA heat pump. It manages the defrost cycle, sequences the compressor and condenser fan, switches the reversing valve between heating and cooling, and protects the system with built-in timing and safety logic. The kit ships complete with the board and required mounting/connection hardware for a clean swap. A failed control board typically presents as a unit that won't run, won't defrost (ice buildup on the outdoor coil), or behaves erratically across modes — symptoms that mimic many other faults, which is why a confirmed bad board is the right repair.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1183618 |
| Type | Control board kit (defrost/sequencing) |
| Brand | ICP / Heil / Tempstar |
| Control Voltage | 24V |
| Includes | Board + installation kit hardware |
| Fits Model | RHH072H0AA0AAAA |
Compatibility
Direct OEM replacement for the ICP / Heil / Tempstar / Comfortmaker RHH072H0AA0AAAA heat pump. As a factory kit, it includes the parts needed to retrofit the original board. Confirm the existing board's part number and connector layout against your unit before installing.
Installation Guide
- Safety First — Disconnect power at the disconnect and breaker, then verify zero voltage at the board with a multimeter.
- Access — Remove the control/service panel on the condensing unit.
- Document — Photograph every connector, plug, and wire location on the old board before unplugging.
- Remove — Unplug the harnesses and remove the mounting screws/standoffs holding the old board.
- Install — Mount the new board using the included hardware and reconnect every harness to the matching position per your photo.
- Test — Restore power, run a heating and a cooling cycle, and confirm proper compressor, fan, and reversing-valve operation.
Signs You Need a Replacement
- Outdoor unit completely dead despite good incoming power
- Heavy ice/frost buildup — defrost cycle not initiating
- System stuck in one mode or switching erratically
- Visible burn marks, scorched traces, or a blown relay on the board
Shipping & Returns
Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.
Shipping Information
- Orders placed before 3PM CST ship same business day
- Standard delivery: 2-5 business days
- Express shipping available at checkout
- Free shipping on orders over $75
- Tracking number emailed upon shipment
Return Policy
- 30-day returns on unused parts in original packaging
- Electrical parts (capacitors, contactors, control boards) are final sale once installed
- Email info@nationalhvacparts.com to initiate a return
- Refunds processed within 5-7 business days